68214993 has 32 divisors (see below), whose sum is σ = 114048000. Its totient is φ = 35232960.

The previous prime is 68214977. The next prime is 68215009. The reversal of 68214993 is 39941286.

It is an interprime number because it is at equal distance from previous prime (68214977) and next prime (68215009).

It is not a de Polignac number, because 68214993 - 2⁴ = 68214977 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (68214953) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44758 + ... + 46256.

It is an arithmetic number, because the mean of its divisors is an integer number (3564000).

Almost surely, 2^68214993 is an apocalyptic number.

It is an amenable number.

68214993 is a deficient number, since it is larger than the sum of its proper divisors (45833007).

68214993 is a wasteful number, since it uses less digits than its factorization.

68214993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1717.

The product of its digits is 93312, while the sum is 42.

The square root of 68214993 is about 8259.2368291507. The cubic root of 68214993 is about 408.5952180748.

The spelling of 68214993 in words is "sixty-eight million, two hundred fourteen thousand, nine hundred ninety-three".